PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS ANDROID MENGGUNAKAN MODEL PROBLEM BASED LEARNING DI SMA KATOLIK KARITAS TOMOHON PADA MATERI KIMIA UNSUR. jsoscied [Internet]. 2025 Jun. 15 [cited 2026 Apr. 16];8(1):286-93. Available from: http://jurnal.poltekstpaul.ac.id/index.php/jsoscied/article/view/920